code: def test_size(self, xp, dtype):
      a = xp.ndarray((2, 3), dtype=dtype)
      return xp.size(a)
  
imports: import unittest
  import sys
  import numpy
  import pytest
  import cupy
  from cupy._core import core
  from cupy import testing
  from cupy_tests.core_tests import test_raw
label_desc: Use image node_id 2 for calling the TestSize obj's underlying member method code with example usage: obj.test_size(xp, dtype) and returns: xp